Nonstationary
a. 非平稳的；非稳定的；非固定的
🗣️ 情景例句
I maintain that the most important thing is having good friends.
我认为最重要的是有好朋友。
I was born in Spain,but I'm a citizen of France.
我在西班牙出生，但是我是一个法国公民。
The next man to approach me was selling expensive pens and watches.
向我兜售的第二个人是卖名贵钢笔和手表的。